Allah has prepared Gardens for them with rivers flowing under them, remaining in them timelessly, for ever. That is the great victory. (Surat at-Tawba, 89)

Allah says He will constantly bestow goodness, and no evil will touch them. That means salvation. There is no half-salvation, it is full salvation. Full happiness in this world means the global dominion of Islam. A person’s strongest instinct is to live forever, to want to be immortal. A person does want to be mortal. That is the only instinct that is not satisfied, but Allah satisfies it in the hereafter. Allah bestows no instinct He will not satisfy. Paradise is the great happiness in the hereafter, while the only salvation in this world is the global dominion of Islam.